It's not going to be released for desktop soon, but good to see innovation nevertheless

NEC has developed a new system cooler that borrows a page from conventional refrigeration techniques. The upshot? The company claims that its design--a liquid chlorofluorocarbon (CFC)-like cooler--uses 60 percent less energy than a conventional CPU water cooler and 80 percent less than a typical stock fan setup. The cooler works by using the CPU itself to boil the system's CFC substitute (as pure CFC emissions are harmful to the environment), which begins to change its state into a gaseous nature around 50 degrees or so. The evaporation draws heat away from the CPU, and the vapor inside the cooling system traverses its way back into a centralized radiator. The radiator uses an attached fan to cool the gas back into a liquid, which then passes its way down to the CPU area once more.